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Place a new coin cell battery into the transmitter (as shown above). When a new lithium
coin cell battery is placed in the transmitter, it will power up and perform basic memory
and function tests. If an error occurs, the transmitter will have the LED on the probe
remain lit and send an error message to the recorder. If the tests are non-problematic, the
transmitter will switch into normal operation mode and the LED will start flashing.
After identifying the appropriate transmitter, attach USB plug on the back of the transmitter
to the jack on the end of the catheter; the connection should be secure without forcing it.
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Calibrate the Dx–pH Probe™
The clinician operating the transmitter and recorder during setup should have sufficient
training prior to using the system. Only authorized clinicians should be authorized to
operate the configuration and calibration controls. The patient will not be able to access this
interface at any time during their study.
When calibrating a sensor, be sure to use only the fresh pH buffer solutions supplied by
Restech for the most accurate calibration values. For convenience and safety, Restech
provides the color coded Dx–Calibration Stand™ and the Dx–Calibration Vials™ which
are pre-filled with pH buffer solution.
Select “Cal” from the main menu.
The recorder will display the Transmitter ID number that was used. You will be prompted
to accept this ID. Pressing the up or down keys allows you to change the ID #. Press any
round key to accept when the appropriate transmitter ID is displayed.
A series of calibration displays will guide you through the process; you will first need to
pre-soak the probe tip in pH 7 for at least ten minutes. If this has already been
accomplished, you may select to bypass the presoak. After calibration in pH 7, you will be
instructed to place the probe in the water, also supplied in the Restech Dx–Calibration
Vials™ and then in pH 4. After calibration in pH 4, you will be instructed to rinse the
probe with water. After rinsing the probe, the calibration routine is complete.
The system will display the current pH reading of the probe. If you are not satisfied with
the calibration results, press Esc, and then select the “Cal” option from the main menu to
perform the calibration process again.
The system will not allow a new study to be performed unless the calibration has been
performed successfully. If there is data on the card from a previous study, the recorder will
alert the user and return to the main menu. A previous study can only be removed using the
Dx–pH DataView™ Software. If no previous study exists, the patient’s name will be
displayed on the screen.
Summary of Contents for Dx-pH Measurement System
Page 2: ...2 Dx pH Measurement System User s Manual Version X X August 2005...
Page 21: ...21...
Page 28: ...28 Click OK when the desired settings have been selected...
Page 32: ...32 Attachment A Patient Instructions...
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